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Finding the Fourth Proportional to 107,775.94, 148,715.56 and 61,207.22

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Solution

The fourth proportional to 107,775.94, 148,715.56 and 61,207.22 is: 84,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,775.94 : 148,715.56 = 61,207.22 : x
  2. Step 2: Convert to fraction form
    107,775.94/148,715.56 = 61,207.22/x
  3. Step 3: Cross multiply
    107,775.94x = 148,715.56 × 61,207.22
  4. Step 4: Simplify right side
    107,775.94x = 9,102,465,998.34
  5. Step 5: Solve for x
    x = 9,102,465,998.34/107,775.94
  6. Step 6: Final answer
    x = 84,457.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.